期刊论文

Comparison on Leaf Anatomical Structure and Photosynthetic Characteristics of Grafted Seedlings and Seedlings in Castanea henryi

中文

西南农业学报

1001-4829

2019

32

4

792-797

10.16213/j.cnki.scjas.2019.4.014

2018NK2043:湖南省重点研发计划 2018JJ3870:湖南省自然科学基金青年项目

本校为第一机构

【目的】以2年生锥栗嫁接苗与实生苗为试材,比较分析2种苗木在叶片生长状况、形态结构及光合特性上的差异,为锥栗的良种苗木繁育提供参考.【方法】本实验主要采用Li-6400便携式光合仪测定法和石蜡切片法.【结果】①嫁接苗与实生苗的净光合速率( P_(max) ) 、光补偿点( LCP) 、光饱和点( LSP) 、表现量子效率( AQY)及叶绿素( a + b)含量( C_c )等光合指标的差异显著( P < 0.05),嫁接苗的Cc为( 4.35 ± 0.47) mg·dm~(-2) >实生苗( 2.43 ± 0.48) mg·dm~(-2),P_(max)为( 6.77 ± 0.01) μmol·m~(-2)·s~(-1) >实生苗( 5.13 ± 0.002) μmol·m~(-2)·s~(-1).②叶片的生长指标,嫁接苗的叶面积和叶...

【Objective】This study was to compare the difference of leaf growth,structure and photosynthetic characteristics in grafts and seeds of Castanea henryi. 【Method】The portable Li-6400 photosynthesis apparatus and paraffin section were used in this experiment.【Result】 These five photosynthetic parameters between two kinds of seedlings were significantly different,which were maximum photosynthetic rate ( P_(max) ),light saturation point ( LSP),light compensation point ( LCP),performance quantum efficiency ( AQY) and chlorophyll-containing ( C_...